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WHOiSEE
WHOiSEE (Brett Hopkin), formerly known as Madhatter!, is an bass music producer originally from Texas and now resides in North Carolina. Brett’s journey started saxophone and guitar before discovering electronic music in 2012, and learning to produce music. Eventually leading him to study Sound Recording Technology at Texas State. As Madhatter!, Brett spent years honing his craft and learning the music industry, but by 2016, he decided to leave college to focus on his music career. Despite facing challenges balancing life and music, Madhatter! began to mature and gain traction. After getting married to his wife Nicole and getting off drugs, Brett needed a fresh start. With over 10 years in the music industry, he started WHOiSEE in January of 2023. With renewed focus and professional experience, WHOiSEE quickly gained attention, landing releases with Subsidia Records, and Circus Records. He’s collaborated with artists like Flowdan, Josh Rubin, and Shaolin G. (of UnityTX). In 2024, WHOiSEE released an official remix for Flux Pavilion, along with Let Go Of Control on DimMak Records, and his 2nd EP Provision on Circus Records. After having his first son in January of 2025, Brett debuted his 1st EP on SubCarbon Records as well as Dirtysnatcha Records. After joining the Corson Agency roster in late 2025, the WHOiSEE project is entering 2026 supporting 2 different tours, collaborations with Hi I’m Ghost, Crizzly and others, and also several label releases already lined up.

Songs

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1
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Ego Check
WHOiSEE
2
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Smacked
WHOiSEE
3
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Get Down
Hi I'm Ghost
4
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Boom Bap
WHOiSEE
5
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Vibe Check
WHOiSEE

Singles & EPs

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Smacked

Single • 2026
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Magic (feat. Akacia)

Single • 2025
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Let Go Of Control (feat. Akacia)

Single • 2024
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Ego Check

Single • 2026
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Tunnel Vision

Single • 2025
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Provision

EP • 2024
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Boom Bap

Single • 2026
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Hip Swing

Single • 2025
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Get Down

Single • 2026
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Blind Sighted

EP • 2025

Videos

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WHOiSEE - Over You (ft. Josh Rubin)

Valiant • 26K views
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WHOiSEE - Let Go Of Control | COPYRIGHT FREE MUSIC

DIM MAK • 2.5K views
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WHOiSEE - Prime Time feat. Flowdan

Circus Records • 3.2K views
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Feel The Bass

WHOiSEE • 3.7K views
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WHOiSEE & XYAN - This Is It | Subsidia

SUBSIDIA • 2.2K views
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Not My Fault

WHOiSEE • 9.9K views

Playlists by WHOiSEE

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Releases

Playlist • WHOiSEE • 55 views